音标：['vidʒilәns]
n. 警戒, 警觉, 失眠症
【医】 不眠症, 警醒症
在线英汉词典

vigilance的短语、例句：

vigilance n[U]: exercise constant, perpetual, etc vigilance 时刻、 永远...保持警惕
Police vigilance was eventually rewarded,eg when an arrest was made. 警方时时警戒终有所获（如逮捕了罪犯）.